2002A&A...390..597I


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.25CET10:22:08

2002A&A...390..597I - Astronomy and Astrophysics, volume 390, 597-609 (2002/8-1)

The nature of the X-ray transient SAX J1711.6-3808.

IN'T ZAND J.J.M., MARKWARDT C.B., BAZZANO A., COCCHI M., CORNELISSE R., HEISE J., KUULKERS E., NATALUCCI L., SANTOS-LLEO M., SWANK J. and UBERTINI P.

Abstract (from CDS):

SAX J1711.6-3808 is an X-ray transient in the Galactic bulge that was active from January through May of 2001 and whose maximum 1-200keV luminosity was measured to be 5x10–9erg/cm2/s which is less than ∼25% of the Eddington limit, if placed at a distance equal to that of the galactic center. We study the X-ray data that were taken of this moderately bright transient with instruments on BeppoSAX and RXTE. The spectrum shows two interesting features on top of a Comptonized continuum commonly observed in low-state X-ray binaries: a broad emission feature peaking at 7keV and extending from 4 to 9keV, and a soft excess with a color temperature below 1keV which reveals itself only during one week of data. High time-resolution analysis of 412ksec worth of data fails to show bursts, coherent or high-frequency quasi-periodic oscillations. Given the dynamic range of the flux measurements, this would be unusual if a neutron star were present. SAX J1711.6-3808 appears likely to contain a black hole. No quiescent optical counterpart could be identified in archival data within the 5"-radius XMM error circle, but the limits are not very constraining because of heavy extinction (AV=16).

Abstract Copyright:

Journal keyword(s): accretion, accretion disks - binaries: close - X-rays: stars: individual: SAX J1711.6-3808

Simbad objects: 28

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Number of rows : 28

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 3516 Sy1 11 06 47.4596406816 +72 34 07.189563769   13.12 12.40     ~ 1425 0
2 ESO 383-35 Sy1 13 35 53.7686909139 -34 17 44.139127597   13.89 13.61 8.9   ~ 1388 0
3 V* IL Lup HXB 15 47 08.2766679321 -47 40 10.284971214           ~ 418 1
4 V* V381 Nor HXB 15 50 58.6520652623 -56 28 35.309070422   17.95 16.6     K3III 1040 0
5 4U 1642-45 LXB 16 45 47.7 -45 36 40           ~ 383 1
6 V* V1033 Sco HXB 16 54 00.137 -39 50 44.90   15.20 14.2 16.14   F5IV 1726 1
7 V* V821 Ara HXB 17 02 49.3810714542 -48 47 23.163091737 16.20 16.30 15.5     ~ 1791 0
8 HD 153919 HXB 17 03 56.7728262865 -37 50 38.912077679 6.06 6.78 6.51 6.08 5.90 O6Iafcp 762 1
9 V* V1101 Sco LXB 17 05 44.4915929414 -36 25 23.049863107   20.10 18.6     ~ 409 0
10 4U 1705-44 LXB 17 08 54.470 -44 06 07.35           ~ 359 0
11 SAX J1711.6-3808 XB* 17 11 37.1 -38 07 06           ~ 35 0
12 4U 1708-40 LXB 17 12 23.83 -40 50 34.0           ~ 58 0
13 [KRL2007b] 228 LXB 17 12 35 -37 39.0           ~ 66 0
14 4U 1711-34 LXB 17 14 19.78 -34 02 47.3           ~ 43 0
15 KS J1716-389 X 17 15.9 -38 53           ~ 6 0
16 NAME Slow Burster LXB 17 31 57.73 -33 50 02.5           ~ 766 1
17 V* V926 Sco LXB 17 38 58.3 -44 27 00 16.90 17.70 17.5     ~ 428 0
18 AX J1740.1-3102 X 17 40 09.000 -31 02 24.00           ~ 37 1
19 V* V2606 Oph NL* 17 42 40.030 -27 44 52.70     23.2     ~ 117 0
20 NAME Great Annihilator LXB 17 43 54.83 -29 44 42.6           ~ 641 1
21 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11821 0
22 AX J1748.0-2829 LXB 17 48 05.060 -28 28 25.80           ~ 172 0
23 INTREF 866 LXB 17 55 28.6 -32 28 39           ~ 38 0
24 V* V4641 Sgr HXB 18 19 21.6342721789 -25 24 25.849323550     13.654   13.092 B9III 403 1
25 V* MM Ser LXB 18 39 57.56 +05 02 09.6   19.2 19.2     ~ 324 0
26 Granat 1915+105 LXB 19 15 11.54938 +10 56 44.7585           ~ 2320 0
27 HD 226868 HXB 19 58 21.6758193269 +35 12 05.782512305 9.38 9.72 8.91 8.42   O9.7Iabpvar 3956 0
28 INTREF 1012 LXB 20 12 37.7593213138 +38 11 00.771841820     21.33     ~ 61 0

    Equat.    Gal    SGal    Ecl

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2020.11.25-10:22:08

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